Structure 19430 · Cassia County, ID
Carries Stc2739;rock CR RD over Rock Creek;shoe Cr.br., 19.2 S. Hanson.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a rigid-frame bridge.
| State | Idaho |
| County | Cassia |
| Location | 19.2 S. Hanson |
| Carries | Stc2739;rock CR RD |
| Crosses | Rock Creek;shoe Cr.br. |
| Coordinates | 42.28919, -114.26072 |
| Material | Concrete |
| Design | Frame |
| Total Length | 22.6 ft (6.9 m) |
| Max Span | 20.7 ft (6.3 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 62.8 sq m |
| Main Spans | 1 |
| Year Built | 1971 |
| Avg Daily Traffic | 600 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2023 |
| Inspection Frequency | Every 48 months |
| Owner | Other Local Agencies |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000019430 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.